Environmental Contamination: Department of Defense Activities Related to Trichloroethylene, Perchlorate, and Other Emerging Contaminants

The EPA's mission is to protect human health and the environment by implementing and enforcing the laws intended to improve the quality of the nation's air, water, and lands. EPA's policies and programs affect virtually all segments of the economy, society, and government. Auditors have identified several significant and persistent challenges across a range of EPA programs and activities and has proposed corrective actions to enable the agency to more effectively accomplish its mission. Based on this work, this testimony highlights some of the major management challenges facing EPA today, the agency's efforts to address them, and the work that remains to be done. Includes recommendations. Illustrations. This is a print on demand report.

Groundwater is water located beneath the ground surface in soil pore spaces and in the fractures of lithologic formations. A unit of rock or an unconsolidated deposit is called an aquifer when it can yield a usable quantity of water. The depth at which soil pore spaces or fractures and voids in rock become fully saturated with water is called the water table. Groundwater is recharged from, and eventually flows to, the surface naturally; natural discharge often occurs at springs and seeps, streams and can form oases or wetlands. Groundwater is also often withdrawn for agricultural, municipal and industrial use by constructing and operating extraction wells. The study of the distribution and movement of groundwater is hydrogeology, also called groundwater hydrology. Typically groundwater is thought of as liquid water flowing through shallow aquifers, but technically it can also include soil moisture, permafrost (frozen soil), immobile water in very low permeability bedrock, and deep geothermal or oil formation water. Groundwater is hypothesised to provide lubrication which can possibly aid faults to move. This book presents important research in the field.

The EPA¿s mission is to protect human health and the environment by implementing and enforcing environmental laws intended to improve the quality of the nation¿s air and water and to protect its land. EPA's policies and programs affect virtually all segments of the economy, society, and gov¿t. This report identifies challenges at EPA that hinder its ability to implement its programs effectively, including: (1) improving agencywide mgmt.; (2) transforming EPA's processes for assessing and controlling toxic chemicals; (3) improving implementation of the Clean Air Act; (4) reducing pollution in the nation's waters, (5) speeding the pace of cleanup at Superfund and other hazardous waste sites; and (6) addressing emerging climate change issues. Illus.

As the U.S. Environmental Protection Agency (EPA) passes the half century mark, the public is largely apathetic towards the need for environmental protections. Today’s problems are largely invisible, and to many people’s eyes, the environment looks like it’s doing just fine. The crippling smog and burning rivers of yesteryear are just a memory. In addition, Americans are repeatedly told that the EPA is hurting the economy, destroying jobs, and intruding into people’s private lives. The truth is far more complicated. The War on the EPA: America’s Endangered Environmental Protections examines the daunting hurdles facing the EPA in its critical roles in drinking water, air and water pollution, climate change, and toxic chemicals. This book takes the reader on a journey into some of today’s most pressing environmental problems: toxic “forever chemicals” known as PFAS, pervasive agricultural pollution, dead zones in the Gulf of Mexico, and widespread air and water pollution from use of fossil fuels. Delving into the science, politics, and human dimension of these and other problems, the book illustrates the challenges of regulation through the EPA's first fifty years, how today’s war on science is undermining the scientific foundation upon which the agency’s legitimacy rests, and why a strong U.S. Environmental Protection Agency is more important than ever before.